Otis w



notched rod, F, which, extending from the botf. The part ot' the shoe B immediately be- NITED STATEs PATENT Ormea.

OTIS WV. STANFORD, OF LEBANON, OHIO, ASSIGNOR IO HIMSELF AND ROBERT W. GILGHRIST, OF SAME PLAGE.

GRAIN-SEPARATOR.

Specification forming part ofLetters Patent No. 43,817, dated August 9,1864.

To all whom it may concern.-

Be it known that I, O'rrs W. STANFORD, of Lebanon, VVa-rren county, Ohio, have invented a new and useful Improvement in Separators; and I do hereby declarethe following to be a full, clear, and exact description thereof, reference being had to the accompanying drawings, making part ot` this specification.

Figure l is a perspective view of a machine embodying my improvements, the fan-case being removed. Fig. 2 is a longitudinal section ofthe machine. Fig. 3 is a transverse section of the shoe, showing the side ducts for the grass-seed. Figs. 4 and 5 are enlarged views of details. l

A respreseuts the frame and casing, and C the fan. The casing being entirely omitted opposite the sides otl the shoe B enables the latter to be substantially ofthe same width as the fan-r ase, so as to aiord the greatest possible worl. ing capacity within given dimensions. 'lhe hopper D has a sliding cut-oft', E, which can be set more or less open by means of a tom of the cut-oil' board, engages over a catch,

neath the hopper has a chute G, from which a series of fingers, H, project laterally above the upper surface of the chute and rearward beyondits edge. .The iin gers H, thus elevated above the chute, preserve the latter from the direct contact of the chaff and facilitate the separat-ion of the seeds, which, falling upon and rolling down the chute, are conducted by the latter and by the fingers H onto a screen I, through which the clover and grass seeds drop onto a double inclined chute, J, whence they are conducted by two ducts, Ii K', in the shoe sides into a grass-seed box or drawer. The shoe B is near its midheight and rear end suspended to the casing by mea-ns of yielding steel or iron bars attached at or above their middles to opposite sides of the shoe and secured vertically to the casing by their extreme ends. One ot these bars is seen at L, Fig. l. This mode of suspending the rear end ofthe shoe together with the presently described single center of suspension at the upper front edge oi the shoe enable a peculiar vertical and lateral agitation of the latter. The front upper part of the shoe at its mid-width rests upon a pallet, I), whose upper and lower extremities occupy, respectively, notches in the shoe and in a bridge, Q, which depends from the frame.

The lateral agitation or rocking of the shce is effected as follows: The drum-shaft M carries a zigzag cam, N, which, working in a yoke, O, which projects from the front side ot' the shoe, imparts to the latter a peculiar complex swaying and rocking motion upon its three centers or points of suspension. Y

In addition to the above lateral rockin g motion an abrupt vertical jar is imparted to the front part of the shoe by providing the pallet I with two arms, p p', which act to' strike a projection from the shoe at each lateral agitation ofthe latter. In order to enable an adjustment of the force of this vertical blow or jar, I provide a plate or bracket, B, having two oblique slots, r r, and two setscrews, r r. The setting of this plate lower down or higher up causes the pallet to strike with a greater or less force.

S represents grooves for several sorts and conditions of screens.

T represents a yielding catch or bar by which any number of screens may be held to whatever grooves they may be placed in.

In order to secure stability on uneven iloors, the machine is made to stand on three feet, U U' U, of which the two former support the two front corners of the machine, while the latter supports the rear end of the machine at its mid-width.

I claim herein as new and of my inventionl. The arrangement ofthe shoe B, suspended near mid-height at its rear end in the opensided frame or casing A by means of the yielding side straps or bars, L, and poised in front upon the single pallet P p p', whose arms act to strike the shoe when the latter is laterally agitated by the zigzag cam N, or its equivalent, substantially as set forth.

2. rIhe arrangement immediately beneath the discharging-aperture of the hopper of the chute G,i'ron1 which L series of lingers7 H, T, 'for thesecure holding und ready liberation project above the upper surface of the chute of one or more screens, as set forth. .tud rearward beyond its edge,t'or the purposes In testimony of which invention I hereunto set forth. set my hund. y

3. The arrangement of grass seed screen 1, OTIS W. STANFORD. f double inclined chute, J and side ducts, K K', Witnesses: 'substantially as set forth. GEO. H. KNIGHT,

4. The provision ofthe spring bnr or cntch R. \V. GILCHRIST. 

